1. Department of Trauma and Orthopaedics, King's College Hospital, London, UK
2. Department of Trauma and Orthopaedics, Imperial College London, London, UK
3. Department of Trauma and Orthopaedics, Southport and Ormskirk Hospital NHS Trust, Southport, UK
4. Department of Orthopaedics, Indraprastha Apollo Hospital, New Delhi, India